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Monocular depth sensing using metalens

open access: yesNanophotonics, 2023
3-D depth sensing is essential for many applications ranging from consumer electronics to robotics. Passive depth sensing techniques based on a double-helix (DH) point-spread-function (PSF) feature high depth estimation precision, minimal power ...
Yang Fan   +4 more
doaj   +5 more sources

Characterization of Open-Ended Coaxial Probe Sensing Depth with Respect to Aperture Size for Dielectric Property Measurement of Heterogeneous Tissues [PDF]

open access: yesSensors, 2022
The open-ended coaxial probe (OECP) method is frequently used for the microwave dielectric property (DP) characterization of high permittivity and conductivity materials due to inherent advantages including minimal sample preparation requirements and ...
Cemanur Aydinalp   +4 more
doaj   +2 more sources

Towards Non-Invasive Diagnosis of Skin Cancer: Sensing Depth Investigation of Open-Ended Coaxial Probes [PDF]

open access: yesSensors, 2021
Dielectric properties of biological tissues are traditionally measured with open-ended coaxial probes. Despite being commercially available for laboratory use, the technique suffers from high measurement error. This prevents the practical applications of
Cemanur Aydinalp   +2 more
doaj   +2 more sources

Towards Accurate Microwave Characterization of Tissues: Sensing Depth Analysis of Open-Ended Coaxial Probes with Ex Vivo Rat Breast and Skin Tissues [PDF]

open access: yesDiagnostics, 2021
Dielectric properties of biological materials are commonly characterized with open-ended coaxial probes due to the broadband and non-destructive measurement capabilities.
Cemanur Aydinalp   +2 more
doaj   +2 more sources

Depth-sensing technology using a negative microlens array

open access: yesInternational Journal of Optomechatronics, 2021
In this study, an optical depth-sensing system whose focus distance was equal to its object distance was constructed by using a lens with a shortened depth of field.
Chih-Hsiung Lin, Kun-Huang Chen
doaj   +2 more sources

Depth-Sensitive Optical Sensing for Non-Invasive Measurement of Human Muscle Activity [PDF]

open access: yesSensors
Human muscle anatomy consists of multiple layers, each contributing to movement through complex patterns of activation. Conventional non-invasive sensing techniques, such as surface electromyography (sEMG) and mechanomyography (MMG), primarily capture ...
Kazunari Matsuo   +3 more
doaj   +2 more sources

Attention-Based Monocular Depth Estimation Considering Global and Local Information in Remote Sensing Images

open access: yesRemote Sensing
Monocular depth estimation using a single remote sensing image has emerged as a focal point in both remote sensing and computer vision research, proving crucial in tasks such as 3D reconstruction and target instance segmentation.
Junwei Lv   +5 more
doaj   +3 more sources

Remote Sensing Pansharpening by Full-Depth Feature Fusion

open access: yesRemote Sensing, 2022
Pansharpening is an important yet challenging remote sensing image processing task, which aims to reconstruct a high-resolution (HR) multispectral (MS) image by fusing a HR panchromatic (PAN) image and a low-resolution (LR) MS image. Though deep learning
Zi-Rong Jin   +5 more
doaj   +1 more source

Enhancing Water Depth Estimation from Satellite Images Using Online Machine Learning: A Case Study Using Baidu Easy-DL with Acoustic Bathymetry and Sentinel-2 Data

open access: yesRemote Sensing, 2023
Water depth estimation is paramount in various domains, including navigation, environmental monitoring, and resource management. Traditional depth measurement methods, such as bathymetry, can often be expensive and time-consuming, especially in remote or
Zhongqiang Wu   +4 more
doaj   +1 more source

Extended Applications of the Depth-Sensing Indentation Method

open access: yesMicromachines, 2020
The depth-sensing indentation method has been applied for almost 30 years. In this review, a survey of several extended applications developed during the last three decades is provided.
Dániel Olasz   +4 more
doaj   +1 more source

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